Join Date: Nov 2009
Location: Clinton/Knoxville, TN
Re: EZ vs Edge Pro
Sorry for the LONG post, but hopefully someone will find it informative...
With either trem, you NEED (ok really want) locking studs. I've got the locking studs that Rich sells in both of my Edge Pro guitars. I've just got the locking studs that came with my RG2550Z, which I'm tempted to change. With locking studs, the tuning stability is excellent with either trem. Alot of it depends on how well you stretch your strings.
If you're not a wild and crazy trem user, the EZ w/ZPS is great. The ZPS prevents the bridge from diving when bending. So it behaves more like a hard tail...your double stops are stay in tune, and you don't have to over bend to get to the pitch you're after. The only downfall is that pull-ups feel normal, whereas dives are very stiff. So if you go from a pull-up to a dive, you feel the trem hit the ZPS bar and then the trem gets heavier.
If you ARE a wild and crazy trem user, you can remove the ZPS. Removing the ZPS is really simple...it's just a bar and 2 springs. With the ZPS removed, the Edge Zero behaves just like an Edge Pro or any other full-floating trem. It will flutter, and it's MUCH easier to dive. The only real drawback, if you're new to trems, is that when you bend the trem dives. Double-stops won't be in tune, and when you bend you have to move the string alot further than a hardtail or ZPS equipped EZ. It's not harder to bend, you just have to bend further to reach the same pitch.
Sometimes you'll hear people say that if you break a string with the ZPS, the bridge will stay in tune. This is FALSE. The ZPS doesn't work that way. What happens when you break a string? The string side of the trem is weaker than the spring side so the trem drops. It's the same as pulling the trem up, which the ZPS has no effect on.
As far as quality, I think the Edge Pro is a little better. The fine tuners are MUCH smoother and easier to adjust than the Edge Zero. Other than that, I really like the Edge Zero. Mine has stood up to alot of abuse and my RG2550Z w/ the ZPS in is my main guitar.